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Hey,
I would like to unlock my bootloader. In all the guides I've read, it says I will lose all my data.
I was wandering whether its possible to perform a Nandroid backup before bootloader unlock and then restore that data after bootloader unlock.
Could someone please tell ne if its possible?
BTW, I use a Sony Ericsson Xperia arc.
Thanks
Testpoit it. Its easier and you dont loose anything and not the DRM keys too. Easier to relock it too, as original
Sent from my sexy LT15i
How would I relock my Bootloader?
Is unlocking a bootloader the same as making it simlock free?
Sent from my Xperia X10 using xda premium
No. Bootloader unlocking is not the same as sim unlocking. Bootloader unlocking allows you to install custom roms to your phone.
Hi, everyone
I have my experience about unlock bootloader, I have unlocked bootloader via official Sony method, when DRM lost, I decided to relock again, flash stock FW via flashtool and repair via PC Companion, after that DRM has been recovered.
So, I've tried to unlock bootloader via testpoint using S1tool, after unlocked, flashed custom kernel and ROM. DRM still lost
Any solution ?
danisariandi said:
Hi, everyone
I have my experience about unlock bootloader, I have unlocked bootloader via official Sony method, when DRM lost, I decided to relock again, flash stock FW via flashtool and repair via PC Companion, after that DRM has been recovered.
So, I've tried to unlock bootloader via testpoint using S1tool, after unlocked, flashed custom kernel and ROM. DRM still lost
Any solution ?
Click to expand...
Click to collapse
When you unlocked via Sony method, you lost your DRM forever . There's no way to recover it. So, I'm pretty sure you're mistaken about the recover of the DRM keys.
panda0 said:
When you unlocked via Sony method, you lost your DRM forever . There's no way to recover it. So, I'm pretty sure you're mistaken about the recover of the DRM keys.
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Click to collapse
When I claimed warranty, I relocked, repair via PC Companion, DRM worked ( transfer music via media go works ) then when I unlocked via testpoint, DRM LOST !! IT'S IMPOSSIBLE
danisariandi said:
When I claimed warranty, I relocked, repair via PC Companion, DRM worked ( transfer music via media go works ) then when I unlocked via testpoint, DRM LOST !! IT'S IMPOSSIBLE
Click to expand...
Click to collapse
Never heard of a way to restore the DRM Keys after unlocking via official method. There's some thread that explains this? I've read from many sources (xda, setool) that once you unlock the official way, you lost the DRM keys forever.
Maybe when I repaired via SUS, DRM recovered
danisariandi said:
Maybe when I repaired via SUS, DRM recovered
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Click to collapse
That's not possible AFAIK. I've searched again and the only thing I found is: You lost your DRM Keys.
DRM Keys are stored in a trim area and when you unlocked with the official method, they're erased. SEUS or SUS can't restore.
At least that's what I've read about this.
Btw, I sent my previous lt18 to Sony warranty without the Keys and they returned a new one. So, the fact that they didn't complain, doesn't mean much. But let's wait for more experienced members opinion. That's all that I know about this.
Ok thanks, I'll kepp my warranty as well
Have you read this post about retrieving drm keys http://forum.xda-developers.com/showthread.php?t=1855798
Sent from my LT15i using xda app-developers app
cokey77 said:
Have you read this post about retrieving drm keys http://forum.xda-developers.com/showthread.php?t=1855798
Sent from my LT15i using xda app-developers app
Click to expand...
Click to collapse
I've read it now. Let's focus some points:
No.. Working Music info download or Track ID does not prove that DRM is recovered. There are workarounds to make stuff like FBMedia like or TrackID work..
From: http://forum.xda-developers.com/showpost.php?p=30815987&postcount=11
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Yes I know what you are saying.. Like I said using your method does make em work(there are other work arounds too).. but the DRM is not recovered. The system is just fooled..
From: http://forum.xda-developers.com/showpost.php?p=30823437&postcount=15
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The only post that supports that might be possible is this one (but, in my humble opinion, this is just a bogus information):
Some info from MDPI device forums.
They have been saying, that just relocking bootloader and unlocking via test point method recovers DRM. No need to reflash ROM/kernel or anything else. Neither you need any Walkman apps or stuff.
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Click to collapse
I strongly believe that like heinrichkaiser said in that thread: This method make the apps work, fooling the system, but don't restore DRM.
They even linked some topics in the setools forum, and no one (even the_laser) could confirm that there's a way to restore. That doesn't mean that it's impossible to make some functionalities work after the loss of the DRM Keys, as you can read here:
ok here's the simple steps after unlocking bootloader.
1. Uninstall the old TrackID (its a system app so u need root)
2. Download the latest TrackID on android market (the silver one/not the old blue)
3. Backup the FBMusicLikes.apk/Music Likes app
4. Uninstall the FBMusicLikes.apk/Music Likes app (its a system app so u need root)
5. Reinstall the FBMusicLikes.apk/Music Likes app
6. connect to net and try it, its now working again.
thanks to rioener for this discovery
Click to expand...
Click to collapse
EDIT: Other post Blagus in the "[Tutorial] Relock bootloader!" thread.
You still can't get DRM back. It's gone from the phone!
From: http://forum.xda-developers.com/showthread.php?t=1134335
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Click to collapse
+1 Thread about it:
http://forum.xda-developers.com/showthread.php?t=1404972
Unlock bootloader will void our warranty..so if we relock it back, will sony detect our phone unlock once? Another question, do we have file for relock back our bootloader? Im Xperia SL user...thanks for ur rply
Sent from my LT26ii using XDA Premium HD app
Post questions in the Q/A section. General section is not for questions.
Thread reported.
Member90 said:
Unlock boot-loader will void our warranty..so if we re-lock it back, will Sony detect our phone unlock once? Another question, do we have file for re-lock back our boot-loader? I'm Xperia SL user...thanks for your reply
Sent from my LT26ii using XDA Premium HD app
Click to expand...
Click to collapse
Well, usually once you unlock the boot-loader you lose the DRM keys with no DRM keys you have no warranty. Therefore yes Sony will detect it was unlocked once, and refuse warranty upon those grounds.
There is methods to unlock without losing the DRM keys but I've not looked into them too much.
Hi,
New to the forums and did a little snooping before posting. I recently bought a z1c australian stock and it came rooted and with the bootloader unlocked. I don't have the original DRM keys nor the TA backup. Is it still possible for me to relock the bootloader? I can't seem to update my phone via PC companion without locking it.
Thanks
Download Flashtool it lets you relock your phone
plankton000 said:
Hi,
New to the forums and did a little snooping before posting. I recently bought a z1c australian stock and it came rooted and with the bootloader unlocked. I don't have the original DRM keys nor the TA backup. Is it still possible for me to relock the bootloader? I can't seem to update my phone via PC companion without locking it.
Thanks
Click to expand...
Click to collapse
Yes, you can re-lock the bootloader, but Your DRM keys are lost unfortunately. As said in earlier post, you can use flashtool to do so. Also, there is a thread which helps You get back some of the features provided by DRM keys, although do note it does not restore DRM keys. You can find the thread here.
I want to return the device to stock and read on the sony dev website you have to flash a firmware but I do not see the Z5P, is there any other way?
thanks,
AC
Is there a reason why you need to relock the BL? According to Sony, there is no way to restore an unlocked BL.
Q: If I change my mind later on, is there any way to restore my device?
A: No. Once you have unlocked the boot loader, you will not be able to revert the device back to a locked or original state or restore the DRM security keys. You can however use the Flash tool for Xperia™ devices to flash a generic Sony ROM, although it will not receive automatic software upgrades.
Source
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fancymans said:
Is there a reason why you need to relock the BL? According to Sony, there is no way to restore an unlocked BL.
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Thanks but the Z5P does not come up as a supported device for the flash tool yet, so I guess the answer is no
aaronc_98 said:
Thanks but the Z5P does not come up as a supported device for the flash tool yet, so I guess the answer is no
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Whats up with warranty after unlocking BL?
miHah said:
Whats up with warranty after unlocking BL?
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Click to collapse
Ask your consumer affairs lawyer in your locality. That's the proper person to ask.
Sent from my SGP311 using XDA Free mobile app
whats the use of re-locking it man you already lost your TA
aaronc_98 said:
I want to return the device to stock and read on the sony dev website you have to flash a firmware but I do not see the Z5P, is there any other way?
thanks,
AC
Click to expand...
Click to collapse
You can relock it using flashtool. Just choose Xperia Z5 when the device window appears. I've already tried it, works like a charm.
Not sure if you can relock it without the back up drm keys. Since there isn't a backup program yet I would assume you've already lost the drm keys. I'm afraid you won't be to revert back to the same. Camera quality and x reality will be affected.
arjun.arora said:
You can relock it using flashtool. Just choose Xperia Z5 when the device window appears. I've already tried it, works like a charm.
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Click to collapse
OK i have found flashtool and click the x, but when when the device reboots and the device chooser comes up, there is no z5p to choose from so just to confirm we use z5, correct?
thanks,
aaronc_98 said:
OK i have found flashtool and click the x, but when when the device reboots and the device chooser comes up, there is no z5p to choose from so just to confirm we use z5, correct?
thanks,
Click to expand...
Click to collapse
Some important things before you attempt the relock:
The DRM keys will not be restored after the relock.
You have to reflash the entire firmware or just flash the stock kernel before relocking the bootloader.
The phone should be on stock kernel, if you try to relock it with custom kernel the phone might brick.
Click BLU in flashtool and follow the instructions.
arjun.arora said:
Some important things before you attempt the relock:
The DRM keys will not be restored after the relock.
You have to reflash the entire firmware or just flash the stock kernel before relocking the bootloader.
The phone should be on stock kernel, if you try to relock it with custom kernel the phone might brick.
Click BLU in flashtool and follow the instructions.
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Click to collapse
OK sucessfully flashed the FTF, how can I check if the BL is locked?
thanks,
aaronc_98 said:
OK sucessfully flashed the FTF, how can I check if the BL is locked?
thanks,
Click to expand...
Click to collapse
Turn off the mobile.
Press the BLU button in flashtool.
Press the volume down button of your mobile and connect it to the PC.
A pop up window will open, select Xperia Z5 (Z5P is not listed yet).
Another window will open, if you see Relock, press it, the bootloader will be relocked.
Let the process be over, then restart the mobile.
arjun.arora said:
Turn off the mobile.
Press the BLU button in flashtool.
Press the volume down button of your mobile and connect it to the PC.
A pop up window will open, select Xperia Z5 (Z5P is not listed yet).
Another window will open, if you see Relock, press it, the bootloader will be relocked.
Let the process be over, then restart the mobile.
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Click to collapse
Thanks Arjun!
Sent from my Nexus 6P using XDA Free mobile app
Relocking Bootloader
I had to unlock my device's bootloader to downgrade it to marshmallow because of the WiFi issue in Nougat, so i did it and didn't backed up the DRM keys(i didn't knew i am supposed to do it. It wasn't mentioned in the tutorial i was following or i missed it). Anyways now i am on marshmallow and i am unable to update it VIA xperia companion. It complains that bootloader is unlocked. Now if i lock the bootloader will xperia companion will work ? What is the affect of the lost DRM keys ? And if anyone knows the WiFi issue is sovled or not ?
neodescorpio said:
I had to unlock my device's bootloader to downgrade it to marshmallow because of the WiFi issue in Nougat, so i did it and didn't backed up the DRM keys(i didn't knew i am supposed to do it. It wasn't mentioned in the tutorial i was following or i missed it). Anyways now i am on marshmallow and i am unable to update it VIA xperia companion. It complains that bootloader is unlocked. Now if i lock the bootloader will xperia companion will work ? What is the affect of the lost DRM keys ? And if anyone knows the WiFi issue is sovled or not ?
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Click to collapse
Salam
use flashtool to upgrade / downgrade to any rom! you have unlocked bootloader! i never used xperia companion to update my z5p
Companin works after Relock BL
neodescorpio said:
I had to unlock my device's bootloader to downgrade it to marshmallow because of the WiFi issue in Nougat, so i did it and didn't backed up the DRM keys(i didn't knew i am supposed to do it. It wasn't mentioned in the tutorial i was following or i missed it). Anyways now i am on marshmallow and i am unable to update it VIA xperia companion. It complains that bootloader is unlocked. Now if i lock the bootloader will xperia companion will work ? What is the affect of the lost DRM keys ? And if anyone knows the WiFi issue is sovled or not ?
Click to expand...
Click to collapse
Yes It will work!
IslzaeL said:
Yes It will work!
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Click to collapse
Can confirm I did the same thing and forgot the keys (new to Sony devices vs. Google). IF you use the XDA FlashTool, you can re-lock the bootloader and Xperia Companion will recognize for a Factory reset of your device.
baldock88 said:
Can confirm I did the same thing and forgot the keys (new to Sony devices vs. Google). IF you use the XDA FlashTool, you can re-lock the bootloader and Xperia Companion will recognize for a Factory reset of your device.
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Click to collapse
Did you restore the DRM keys from Xperia Companion or at least retrieve all the functions that DRM related (Xreality, Bravia engine ... )